Implicit Discourse Relation Classification: We Need to Talk about Evaluation Najoung Kim author Song Feng author Chulaka Gunasekara author Luis Lastras author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics Dan Jurafsky editor Joyce Chai editor Natalie Schluter editor Joel Tetreault editor Association for Computational Linguistics Online conference publication kim-etal-2020-implicit 10.18653/v1/2020.acl-main.480 https://aclanthology.org/2020.acl-main.480/ 2020-07 5404 5414